Changes in libcfa/src/bits/locks.hfa [3aeee3c:73abe95]

File:

• libcfa/src/bits/locks.hfa (modified) (5 diffs)

libcfa/src/bits/locks.hfa

@@ -10 +10 @@
 // Created On       : Tue Oct 31 15:14:38 2017
 // Last Modified By : Peter A. Buhr
-// Last Modified On : Sat Aug 11 15:42:24 2018
-// Update Count     : 10
+// Last Modified On : Fri Mar 30 18:18:13 2018
+// Update Count     : 9
 //
 
@@ -37 +37 @@
 #endif
 
+#if defined( __i386 ) || defined( __x86_64 ) || defined( __ARM_ARCH )
+        // Intel recommendation
+        #define __ALIGN__ __attribute__(( aligned (128) ))
+#elif defined( __sparc )
+        #define __ALIGN__ CALIGN
+#else
+        #error unsupported architecture
+#endif
+
 struct __spinlock_t {
         // Wrap in struct to prevent false sharing with debug info
-        volatile bool lock;
+        struct {
+                // Align lock on 128-bit boundary
+                __ALIGN__ volatile _Bool lock;
+        };
         #ifdef __CFA_DEBUG__
                 // previous function to acquire the lock
@@ -46 +58 @@
                 void* prev_thrd;
         #endif
-};
+} __ALIGN__;
 
 #ifdef __cforall
@@ -52 +64 @@
                 extern void disable_interrupts();
                 extern void enable_interrupts_noPoll();
-
-                #ifdef __CFA_DEBUG__
-                        void __cfaabi_dbg_record(__spinlock_t & this, const char * prev_name);
-                #else
-                        #define __cfaabi_dbg_record(x, y)
-                #endif
         }
 
@@ -66 +72 @@
         }
 
+
+        #ifdef __CFA_DEBUG__
+                void __cfaabi_dbg_record(__spinlock_t & this, const char * prev_name);
+        #else
+                #define __cfaabi_dbg_record(x, y)
+        #endif
+
         // Lock the spinlock, return false if already acquired
-        static inline bool try_lock  ( __spinlock_t & this __cfaabi_dbg_ctx_param2 ) {
-                bool result = (this.lock == 0) && (__atomic_test_and_set( &this.lock, __ATOMIC_ACQUIRE ) == 0);
+        static inline _Bool try_lock  ( __spinlock_t & this __cfaabi_dbg_ctx_param2 ) {
+                _Bool result = (this.lock == 0) && (__atomic_test_and_set( &this.lock, __ATOMIC_ACQUIRE ) == 0);
                 if( result ) {
                         disable_interrupts();